Tracing box



FIG. 1 is a perspective view of a tracing box embodying my design,

FIGS. 2 and 7 respectively are top and bottom plan views thereof,

FIGS. 3 and 4 respectively are elevations of opposite sides thereof, and

FIGS. 5 and 6 respectively are elevations of opposite ends of the tracing box. 

The ornamental design for a tracing box, substantially as shown. 